kernel/linux.git/drivers/gpu/drm/panel, branch v6.12.80

drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()

2026-03-04T12:21:03+00:00

[ Upstream commit 95eed73b871111123a8b1d31cb1fce7e902e49ea ] In jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it may be NULL: if (!jdi) mipi_dsi_detach(dsi); However, when jdi is NULL, the function does not return and continues by calling jdi_panel_disable(): err = jdi_panel_disable(&jdi->base); Inside jdi_panel_disable(), jdi is dereferenced unconditionally, which can lead to a NULL-pointer dereference: struct jdi_panel *jdi = to_panel_jdi(panel); backlight_disable(jdi->backlight); To prevent such a potential NULL-pointer dereference, return early from jdi_panel_dsi_remove() when jdi is NULL. Signed-off-by: Tuo Li Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20251218120955.11185-1-islituo@gmail.com Signed-off-by: Sasha Levin

gpu/panel-edp: add AUO panel entry for B140HAN06.4

2026-03-04T12:20:59+00:00

[ Upstream commit 2976aeb0de77da599ad37691963efbdcb07435ce ] Add an eDP panel entry for AUO B140HAN06.4 that is also used in some variants of Lenovo Flex 5G with Qcom SC8180 SoC. The raw edid of the panel is: 00 ff ff ff ff ff ff 00 06 af 3d 64 00 00 00 00 2b 1d 01 04 a5 1f 11 78 03 b8 1a a6 54 4a 9b 26 0e 52 55 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 14 37 80 b8 70 38 24 40 10 10 3e 00 35 ae 10 00 00 18 10 2c 80 b8 70 38 24 40 10 10 3e 00 35 ae 10 00 00 18 00 00 00 fe 00 41 55 4f 0a 20 20 20 20 20 20 20 20 20 00 00 00 fe 00 42 31 34 30 48 41 4e 30 36 2e 34 20 0a 00 eb I do not have access to the datasheet and but it is tested on above mentioned laptop for a few weeks and seems to work just fine with timing info of similar panels. Cc: Bjorn Andersson Cc: Vinod Koul Signed-off-by: Alexey Klimov Reviewed-by: Douglas Anderson Signed-off-by: Douglas Anderson Link: https://patch.msgid.link/20251203074555.690613-1-alexey.klimov@linaro.org Signed-off-by: Sasha Levin

drm/panel: sw43408: Remove manual invocation of unprepare at remove

2026-03-04T12:19:49+00:00

[ Upstream commit cbc1e99a9e0a6c8b22ddcbb40ca37457066f9493 ] The drm_panel_remove should take care of disable/unprepare. Remove the manual call from the sw43408_remove function. Fixes: 069a6c0e94f9 ("drm: panel: Add LG sw43408 panel driver") Reviewed-by: Dmitry Baryshkov Signed-off-by: David Heidelberg Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20251214-pixel-3-v7-5-b1c0cf6f224d@ixit.cz Signed-off-by: Sasha Levin

drm/panel-simple: fix connector type for DataImage SCF0700C48GGU18 panel

2026-01-23T10:18:47+00:00

commit 6ab3d4353bf75005eaa375677c9fed31148154d6 upstream. The connector type for the DataImage SCF0700C48GGU18 panel is missing and devm_drm_panel_bridge_add() requires connector type to be set. This leads to a warning and a backtrace in the kernel log and panel does not work: " WARNING: CPU: 3 PID: 38 at drivers/gpu/drm/bridge/panel.c:379 devm_drm_of_get_bridge+0xac/0xb8 " The warning is triggered by a check for valid connector type in devm_drm_panel_bridge_add(). If there is no valid connector type set for a panel, the warning is printed and panel is not added. Fill in the missing connector type to fix the warning and make the panel operational once again. Cc: stable@vger.kernel.org Fixes: 97ceb1fb08b6 ("drm/panel: simple: Add support for DataImage SCF0700C48GGU18") Signed-off-by: Marek Vasut Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20260110152750.73848-1-marex@nabladev.com Signed-off-by: Greg Kroah-Hartman

drm/panel: sony-td4353-jdi: Enable prepare_prev_first

2026-01-08T09:14:04+00:00

[ Upstream commit 2b973ca48ff3ef1952091c8f988d7796781836c8 ] The DSI host must be enabled before our prepare function can run, which has to send its init sequence over DSI. Without enabling the host first the panel will not probe. Fixes: 9e15123eca79 ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset") Signed-off-by: Marijn Suijten Reviewed-by: Douglas Anderson Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Martin Botka Signed-off-by: Douglas Anderson Link: https://patch.msgid.link/20251130-sony-akari-fix-panel-v1-1-1d27c60a55f5@somainline.org Signed-off-by: Sasha Levin

drm/panel: visionox-rm69299: Don't clear all mode flags

2025-12-18T12:54:40+00:00

[ Upstream commit 39144b611e9cd4f5814f4098c891b545dd70c536 ] Don't clear all mode flags. We only want to maek sure we use HS mode during unprepare. Fixes: c7f66d32dd431 ("drm/panel: add support for rm69299 visionox panel") Reviewed-by: Neil Armstrong Signed-off-by: Guido Günther Reviewed-by: Dmitry Baryshkov Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250910-shift6mq-panel-v3-2-a7729911afb9@sigxcpu.org Signed-off-by: Sasha Levin

drm/panel: novatek-nt35560: Fix invalid return value

2025-10-15T10:00:04+00:00

[ Upstream commit 125459e19ec654924e472f3ff5aeea40358dbebf ] Fix bug in nt35560_set_brightness() which causes the function to erroneously report an error. mipi_dsi_dcs_write() returns either a negative value when an error occurred or a positive number of bytes written when no error occurred. The buggy code reports an error under either condition. Fixes: 8152c2bfd780 ("drm/panel: Add driver for Sony ACX424AKP panel") Reviewed-by: Douglas Anderson Reviewed-by: Neil Armstrong Signed-off-by: Brigham Campbell Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250731032343.1258366-2-me@brighamcampbell.com Signed-off-by: Sasha Levin

drm/panel-simple: fix the warnings for the Evervision VGG644804

2025-06-19T13:32:18+00:00

[ Upstream commit 5dc1ea903588a73fb03b3a3e5a041a7c63a4bccd ] The panel lacked the connector type which causes a warning. Adding the connector type reveals wrong bus_flags and bits per pixel. Fix all of it. Fixes: 1319f2178bdf ("drm/panel-simple: add Evervision VGG644804 panel entry") Signed-off-by: Michael Walle Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250520074110.655114-1-mwalle@kernel.org Signed-off-by: Sasha Levin

drm/panel: samsung-sofef00: Drop s6e3fc2x01 support

2025-06-19T13:31:36+00:00

[ Upstream commit e1eb7293ab4107e9e19fa609835e657fe30dfec7 ] We never properly supported this panel and always used the wrong init sequence. Drop support so we can move it to it's own proper driver. Fixes: 5933baa36e26 ("drm/panel/samsung-sofef00: Add panel for OnePlus 6/T devices") Signed-off-by: Casey Connolly Signed-off-by: David Heidelberg Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20250419-drop-s6e3fc2x01-support-v1-1-05edfe0d27aa@ixit.cz Signed-off-by: Sasha Levin

drm/panel-edp: Add Starry 116KHD024006

2025-05-29T09:03:09+00:00

[ Upstream commit 749b5b279e5636cdcef51e15d67b77162cca6caa ] We have a few reports of sc7180-trogdor-pompom devices that have a panel in them that IDs as STA 0x0004 and has the following raw EDID: 00 ff ff ff ff ff ff 00 4e 81 04 00 00 00 00 00 10 20 01 04 a5 1a 0e 78 0a dc dd 96 5b 5b 91 28 1f 52 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 8e 1c 56 a0 50 00 1e 30 28 20 55 00 00 90 10 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe 00 31 31 36 4b 48 44 30 32 34 30 30 36 0a 00 e6 We've been unable to locate a datasheet for this panel and our partner has not been responsive, but all Starry eDP datasheets that we can find agree on the same timing (delay_100_500_e200) so it should be safe to use that here instead of the super conservative timings. We'll still go a little extra conservative and allow `hpd_absent` of 200 instead of 100 because that won't add any real-world delay in most cases. We'll associate the string from the EDID ("116KHD024006") with this panel. Given that the ID is the suspicious value of 0x0004 it seems likely that Starry doesn't always update their IDs but the string will still work to differentiate if we ever need to in the future. Reviewed-by: Neil Armstrong Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20250109142853.1.Ibcc3009933fd19507cc9c713ad0c99c7a9e4fe17@changeid Signed-off-by: Sasha Levin